Lack and limitation can only exist when we make room for them in our mind
Let's start with what we can be thankful for, and get our mind into that vibration, and then watch the good that starts to come, because one thought leads to another thought.
When your feeling down, do you know you can change it, like that. Put on a beautiful piece of music, start singing, that will change your emotion - or think of something beautiful, think of a baby, maybe one you love, really keep that thought in your mind, block out everything but that thought. I guarantee you'll start to feel good.